Added changelog to keep track of updates between versions

CHANGELOG.md

@@ -0,0 +1,13 @@
+# Changelog
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
+and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
+
+## [Unreleased]
+
+## [14.0.0] - 2018-07-21
+### Added
+- New `dev/auth.json` file used instead of `~/.composer/auth.json` file, so each project can have different auth credentials.
+### Changed
+- The `cron` service is now disabled by default. This services uses higher CPU and should probably only be enabled when working on cron-related tasks (or on production).